Cooperative Guidance Law with Predefined-Time Convergence for Multimissile Systems

To intercept the maneuvering target through multimissile cooperation, predefined-time cooperative guidance (PTCG) law is presented with constraints including impact time and line-of-sight (LOS) angle. In order to achieve simultaneous interception, we propose a PTCG in LOS direction based on consensus protocol, which guarantees achievement of each missile’s within predefined time. Furthermore, ensure convergence angle angular rate, fixed-time disturbance observer (FxTDO) normal LOS. Compared traditional finite-time or laws, proposed predefines upper bound settling as an explicit parameter. Finally, simulation results verify efficiency method.